Head mounted audio-visual display system



FIG. 1 is a left front perspective view of a head mounted audio-visual display system showing our design;

FIG. 2 is a right rear perspective view thereof;

FIG. 3 is a front view thereof;

FIG. 4 is a rear view thereof;

FIG. 5 is a right view thereof;

FIG. 6 is a left view thereof;

FIG. 7 is a top view thereof; and,

FIG. 8 is a bottom view thereof.

The broken lines depicting various portions of the head mounted audio-visual display system are included for the purpose of illustrating environmental structure and form no part of the claimed design. 

CLAIM We claim the ornamental design for a head mounted audio-visual display system, as shown and described. 